This is great news, Pat Patterson is Switching on the Lightbulb. How many engineers does it take to switch a LAMP? Indeed, Two dot o. Identity 2.0!
Now this Two dot Oohh thing /is/ out of control but is more then a media hype trademark of Tim TM. And part of this 2.0 thingy is Identity 2.0. More then single sign on / log on, it's about who you are! Not just how you authenticate against what service with what protocol. Some very very good presentations can be found at Dick Hardt's site.
Having said that ID2.0 is more then a protocol or a password, you do need those to "be" yourself. SAML is one of the popular corporate ways of doing this. SAML however has been J2EE only for a long time, not in theory but in practice. And that doesnt help the federated part in federated identity management.
Now with Pat's work, SAML 2.0 can be used from PHP:
Over the past few months I've had a side project - implementing a SAML 2.0 service provider (SP) in PHP
Great to see this, in combination with SUN open "Sun Access Manager" offering, OpenSSO federated identity management can be used from PHP projects like Drupal as well with SAML. Great! Thanks SuperPat!
Switching on the Lightbulb